Zverev's five-set defeat of Flavio Cobolli makes him the first German man to win a Slam since Boris Becker 30 years ago.
Eighth-ranked Mirra Andreeva ended the run of 114th-ranked Polish qualifier Maja Chwalinska in 6-3, 6-2 win in final.
Teenager Mirra Andreeva fulfills her huge potential with a first Grand Slam title as Polish qualifier Maja Chwalinska is denied a fairytale French Open victory.
World no 318's victory over Marin Cilic also made him the youngest man to claim a Grand Slam victory in 17 years.
At 17, Moise Kouame becomes the youngest winner of a Grand Slam match with French Open win against Marin Cilic.
The dispute between players and the Grand Slams reaches boiling point in Paris, but boycott restricted to media duties.